Winding mechanism



R. lVlcC. JOHNSTONE.

WINDING MECHANISM. .APPLICATION FILED AuG.25, 1920. RENEwED AuG..8. 1921.

1,408,742. PanIedMar. 7, 1922.

` 3 SHEETS-SHEET l.

R. MCC. OHNSTQNE. WINDING MECHANISM. APPLlcAnoN man Aua.z5, 1920. RENEwfD AUG. 1921.

1,408,742. Patented Mar. 7, 1922.

's SHEETS-SHEET 2'.

"IHIHIIIII M We @13 Strom/m R. MCC. JOHNSTONE. WINDING MECHANISIVI. APPLicATmM FILED AUG.25.1920. RENEwED AuG.8.1sz1.

Patented Mar. 7, 1922.

3 SHLETS-SHEET 3.

Snom/dro@ Parar oFFi-CE.

ROBERT MCC. JOHNSTONE, OF ROSELL PARK, NEW`J'ERSEY, .ASSIGNOR TO CAMERON MACHINE COMPANY, 0F BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

WirimNe MECHANISM.

Specification of Letters Patent.

Patented Mar. 7, 1922.

Application led August 25, 1920, Serial No. 405,928.' Renewed August 8, 1921. Serial No. 490,729.

In devices of this character, it has heretofore been customary to provide pinions on the framework and to mount racks for engagement therewith on a vertically mov- I' able carriage carrying the top pressure roller. When it was desired to manually lift or lower the carriage mounting the top pressure roller, rotation of the pinions in the proper direction would effect the desired result. It is not, however, alwaysl desirable to lift an'd lower heavy racks, if for no other reasonthan because, in the arrangement heretofore employed, it is diliicult to maintain a given weight to the top pressure that the rewind shaft is displaced upwardly roller throughout the winding operation with 'the result that coils of material are wound under diierent degrees of pressure at different times during the rewinding ope-ration. A reversal of the usual arrangement is therefore desirable at times. It will be understood, however, that if the racks'are stationary on the frames and if the pinions are mounted on the movable carriage, the rise and fall of said carriage will move any operating handle that may be attached to the pinions up or down. This is inconvenient for the operator beca-use at times the handle may be so high up as to be not readily accessible and also because the oper- 4ator prefers to have a definite and unchanged position for an operating handle so that he may instinctively, as it'were,

reach out for'theright place. In addition, the operating handle would change its position vertically during operation which would tend to confuse the operator.

The main object and` feature of the invention is vto so arrange an operating handle for actuating pinions on a movable carriage that it will always occupy substantially the same position, regardless of the vertical position of the pinions and carriage, and it consists of the features of' construction, combination of parts and. arrangement of elements hereinafter described, a preferred' form of which is disclosed in the accompanying drawings,'in which Fig. 1 is .a front elevation, partly broken away, of a winding machine embodying the.

invention and 'looking in the direction of the arrow l of Fig. 2.

Fig. 2 is a side elevation of the parts shown in Fig. 1 showingthe carriage in an upper position. l

Fig. 3 is a view similar |to Fig. 2 with the carriage in a lower position.

F ig. 4 is a horizontal sectional' View on lthe plane of the line 4 4.- of Fig. 1.

Fig. 5 is a detail view ofa latch employed in connection with my'invention.

Fig. 6 is a sectional view on the plane of the line 6-6 of Fig. 5. .j y Fig. 7 is a sectional view on the plane of the line 7 7 of Fig. 2.

The form of winding mechanism herein disclosed consists of front and rear rewinding drums 1 and 2, a rewind shaft 3 and a top pressure roller 4. It will be understood placeable. vertically by the rise of the rewound material and is mounted in a carriage 7 sliding on the vertical guides 8. Sliding members are carried by carriage 7 and slide in guide members 9 on the f ramework. Carriage 7 is provided with tie rod 10 and pinion shaft 11 extending transversely of the machine and has plates 12 (Fig. 4) that engage the rear face of guides 8i 13 indicate pinions mounted on the pinion shaft to engage upright racks 14E on the front face of guides 8. t 1s customary to drive the top pressure roller and this is accomplished in the present linstance by means of a slip friction drive' member 15 vertically movable with the carriage and sliding-on splined driving shaftl. Slip friction drive memberl has a bevel gear engagin bevel pinion 17 on top pressure roller. Lglhe amount ofpressure ofthe-top pressure roller is regulated by weights 18 `or down of pinion shaft 11.

carried by flexible connection 19 that pass over sheaves 20 and are attached to the vertically movable carriage.

21 is a stationary support bolted to the framework and carrying at its outer end a stud 22. 23 is a hanger having an elongated slot 2li into which stud 22 extends. rlhis hanger is at one end journaled to the vertically movable carriage, preferably to the pinion shaft, and carries at its other end an actuating shaft 25. Suitable transmission means here taking the form of sprocket wheels 26, 27 and chain 28 connect the pinion and actuating shafts. llt will be understood that rotation of'handwheel 29 on the actuating shaft will raise or lower carriage 7 and that the rise or. fall ofv pinion shaft l1 will cause hanger 23 to slide and rock on stud 22. rllhe effect of this movement is to maintain the actuating shaft substantially equidistant from the. pinion shaft by moving the frame slightly in or out and'to keep chain 28 taut. It will be observed that this is accomplished without materially altering the position of actuating shaft which will remain in substantially the same vertical position notwithstanding the movement up Another advantage to be observed in this connection is that the effective pressure of the top pressure roller is not substantially varied by the travel of the parts during the operation of the machine, and alsoy that a multiplicity of gears and shafts is avoided thus insuring a smooth and uninterrupted rise of the top pressure roller. If many gears were employed there would be a tendency4 to bind and a jerky motion would be produced thus interfering with the smooth rise of the pressure roller and preventing the application of even pressure.

'lf after raising carriage 7 to a certain position` out of contact with the rewound Inaterial, say for the purpose of removing the latter, it is desired to retain the carriage in this position`, l make use of a latch for preventing backward rotation of the actuating shaft under the influence of the weight of the carriage. This latch may be constructed as follows: on shaft' 25; and 31 is a pawl pivotally supported on the hanger and normally urged into engagement with the ratchet by pullspring 32. During normal operation of the machine, that is, when the pressure roller is rising, the pawl may be in engagement with the ratchet and will, owing to the direction -of rotation of the parts, click idly over the ratchet, and the same thing will occur when pressure roller is lifted out of contact with the rewoundj material. llf, however, backward rotation is attempted, the engagement of the pawl with the ratchet will prevent it. Y

Mounted on the pavvl is a stem provided with a rotatable sleeve 33 having a pro is a ratchet mounted fast jection 34e and a pin 35 is provided on the hanger. lf the'pawl is now removed from engagement with the ratchet, as shown in Figz, projection 34 may be turned in under pin 35 to retain the pawl in this position, and the pressure roller may then be lowered.

l claim:

1. ln winding mechanism, upright guides, acarriage vertically movable on said guides, upright racks on said guides, a transversely extending pinion shaft on said carriage, pinions on said shaft to engage the racks, an actuating shaft mounted parallel with the pinion shaft and independently of the car riage, transmission means between the'two shafts, and means for maintaining the actuating lshaft substantially equidistant from the pinion shaft in any vertical position of the latter.

2. ln winding mechanism, upright guides, a carriage vertically movable on said guides, upright racks on said guides, a transversely extending pinion shaft on said carriage, pinions on said shaft to engage the racks, an ac tuating shaft mounted parallel with the pinion shaft and independently of the carriage, transmission means between the two shafts, a hanger carrying the actuating shaft, a stationary support for the hanger, and means for moving on its support the hanger toward and away from the pinion shaft by the rise and fall of the latter.

3,. ln winding mechanism, upright guides, a carriage vertically movable on said guides, upright racks on said guides, a transversely extending pinion shaft on said carriage, pinions on said shaft to engage'the racks, an actuating shaft mounted parallel with the pinion shaft and independently of the carriage, transmission means between the two shafts, a4 hanger carrying the actuating shaft, a stationary support for the hanger, and -means for rocking and sliding the hanger on its support by the rise and lfall of the pinion shaft.

"4. ln winding mechanism, upright guides, a carriage vertically movable on said guides, upright racks on said guides, a transversely extending pinion shaft on saidA carriage, pinions on said shaft to engage the racks, an actuating shaft mounted parallel with the pinion shaft and independently of the carriage, ltransmission means between the two shafts, a stationary support, and a hanger, for the actuating shaft, having a sliding and rocking movement n the support and journaled on the carriage.

5. In winding'mechanism, upright guides, a carriage vertically movable on said guides, upright racks on said guides, a transversely extending pinion shaft on said carriage, pinions on said shaft to engage the racks,

Mtl

an actuating shaft mounted parallel with two shafts, and means for maintaining the` actuating shaft substantially eqnidistant from the pinion shaft in any vertical position of the latter While retainingl it in substantially the same vertical posit-ion.

6. In Winding mechanism, upright guides, a carriage vertically movable on said guides, upright racks on said guides, a transversely extending pinion shaft on said carriage, pinions on said shaft to engage the racks, an actuatinor shaft mounted parallel with the pinion shaft and independently of the carriage, transmission members on the two shafts, a flexible transmission connection between the two members, and means for malntaining the flexible Itransmission member taut notwithstanding changes in the vertical position of the pinion shaft.

7. In winding mechanism, upright guides, a carriage vertically movable on said guides, upright racks on said guides, a transversely extending; pinion shaft on said carriage, pinions on said shaft to engage the racks, an actuating shaft mounted arallel with the pinion shaft and indepen entlyof the carnage, transmission means between the two shafts, astationary support, a hanger, for the actuatlng shaft, having a sliding and rocking movement on the support and journaled on the carriage, a ratchet on the actuating shaft, a pawl on the hanger, means for normally urging the paWl into engagement with the ratchet, and means for holding the pawl out of engagement with the ratchet.

8. ln Winding mechanism, upright guides, a carriage vertically movable on said guides, upright racks on said guides, a transversely extending pinion shaft on said carriage, pinions on said shaft to engage the racks, an actuating shaft mounted parallel with the pinion shaft and independently of the carriage, transmission means between the two shafts, a stationary su'pport, a hanger, for the actuating shaft, having a sliding and rocking movement on the support and journaled on the carriage, a ratchet on the acA tuating shaft, a pawlon the hanger, means for normally urging the paWl into engagement with the ratchet, means for holding` the paWl out of engagement with the ratchet including a pin on the hanger, and a rotatable member having a projection adapted to ass under said pin.

igned at the borough of Brooklyn, in

the county of Kings, city and State of New York, this 23 day of August, 1920.

ROBERT MCC. JOHNSTONE. 

